Just so everybody is on the same page here, those rotors and hats pictured are not the original 930 parts. Those look like they are VCI rotors which use their own hats and I believe a Wilwood UL (UltraLight) or Coleman rotor. People here on Pelican in the past have experienced problems with those rotors warping. Not pad material buildup warping. Actual rotor warpage.

With the original Porsche 930 hats ... if I recall correctly, you install them with the bevel outward and they are either floating or not floating and you can install the with the bevel inward the you will get the opposite effect. Can't remember exactly which way is floating but I think it is listed in the Porsche Work Shop Manual.

Holy Cow Bill used my picture in his post!!!! What is the world coming to. I'll admit that is an honor. My 930 brakes are flawless and scare the ship out of my friends that ride along. I can go deeeeeeeep into corners than apply the jawzz of life to my silly little cab.

Not sure I did a thread here on raising my spindles 26mm and de-cambering them by 1° on a milling machine I got off Craigslist. Used parts from Rebel Racing and had a customer do the final welds. Love Clint. Highly recommended.

If I scrap my disks, what setup, solid or floating, and manufacture would you advise?

Thanks!

Go to p a r t s g e e k . c o m and enter 1978 for year, Porsche for maker, and 930 for model. Select the Zimmermann rotors. I've got Sebro in the back from them. Was literally half price and the same exact parts. Sorry, but the deals are out there.

Then go to Rebel and get the hats and Tlocks. The rotors and hats will have 12 slots in each so you will need 24 Tlocks. If you go to Coleman you will need to buy 3 of their 8 packs.

EDIT: I see that my other source has raised their price to the level Pelican has them....so go with Pelican. I've got Sebro on the back.

I have done as told, parts are ordered from Rebel and Pelican, except I went for the Sebro disks, they are below 1/3 of the price compared to Zimmerman. The car is mostly used for street driving, my be trackdays, no racing, the car is below 1000kg, I will never manage to use the brakes to the limit.

Quote:

Originally Posted by douglas bray

Go to p a r t s g e e k . c o m and enter 1978 for year, Porsche for maker, and 930 for model. Select the Zimmermann rotors. I've got Sebro in the back from them. Was literally half price and the same exact parts. Sorry, but the deals are out there.

Then go to Rebel and get the hats and Tlocks. The rotors and hats will have 12 slots in each so you will need 24 Tlocks. If you go to Coleman you will need to buy 3 of their 8 packs.

EDIT: I see that my other source has raised their price to the level Pelican has them....so go with Pelican. I've got Sebro on the back.

I have done as told, parts are ordered from Rebel and Pelican, except I went for the Sebro disks, they are below 1/3 of the price compared to Zimmerman. The car is mostly used for street driving, my be trackdays, no racing, the car is below 1000kg, I will never manage to use the brakes to the limit.

Sebro is the way to go then. Same same. I don't know what was up with pricing. I even noticed some vendors had lefts but no rights or visa versa.

At this point the only thing I'd do is swap in more aggressive rear pads on my car. I can lock up the fronts long before the backs.